#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
#include <iostream>
#include <map>
#include <list>
#include <cstdio>
#include <cmath>
#include <cstring>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <queue>
#include <iomanip>
#define INF 1050000000

using namespace std;

int main(void)
{
	int N;
	int a, b, c, d;
	string r;
	bool X[10];

	memset(X, true, sizeof(X));

	cin >> N;

	for (int i = 0; i < N; i++) {
		cin >> a >> b >> c >> d >> r;
		if (r == "YES") {
			for (int j = 0; j < 10; j++) {
				if (j != a && j != b && j != c && j != d) {
					X[j] = false;

				}
			}
		} else {
			X[a] = false;
			X[b] = false;
			X[c] = false;
			X[d] = false;

		}
	}
	
	for (int i = 0; i < 10; i++) {
		if (X[i] == true) {
			cout << i << endl;
		}
	}
}